Merge pull request #10 from Xirdion/xirdion/feature-1

Add copyright info to image template. Thanks @Xirdion

EventListener/ParseTemplateListener.php

@@ -0,0 +1,68 @@
+<?php // with ♥ and Contao
+
+/**
+ * ImageCopyright for Contao Open Source CMS
+ *
+ * @copyright   2016 – 2022 Tastaturberuf <tastaturberuf.de>
+ * @author      Daniel Jahnsmüller <tastaturberuf.de>
+ * @license     LGPL-3.0-or-later
+ */
+
+declare(strict_types=1);
+
+
+namespace Tastaturberuf\ContaoImageCopyrightBundle\EventListener;
+
+
+use Contao\CoreBundle\Routing\ScopeMatcher;
+use Contao\FilesModel;
+use Contao\Template;
+use Symfony\Component\HttpFoundation\Request;
+use Symfony\Component\HttpFoundation\RequestStack;
+
+
+class ParseTemplateListener
+{
+    private ScopeMatcher $scopeMatcher;
+    private ?Request $request;
+
+    public function __construct(ScopeMatcher $scopeMatcher, RequestStack $requestStack)
+    {
+        $this->scopeMatcher = $scopeMatcher;
+        $this->request = $requestStack->getCurrentRequest();
+    }
+
+    /**
+     * Add the copyright fields to the image template
+     *
+     * @param Template $template
+     *
+     * @return void
+     */
+    public function onParseTemplate(Template $template): void
+    {
+        if (null === $this->request) {
+            return;
+        }
+
+        if (false === $this->scopeMatcher->isFrontendRequest($this->request)) {
+            return;
+        }
+
+        // Only the image template should be used
+        if (false === str_starts_with($template->getName(), 'image')) {
+            return;
+        }
+
+        // Load the image with the given uuid
+        $uuid = $template->__get('uuid');
+        $file = FilesModel::findByUuid($uuid);
+        if (null === $file) {
+            return;
+        }
+
+        // Add the file data to the template
+        $template->__set('ic_href', $file->__get('ic_href'));
+        $template->__set('ic_copyright', $file->__get('ic_copyright'));
+    }
+}

Resources/config/services.yaml

@@ -17,3 +17,10 @@ services:
         arguments:
             $rootDir: '%kernel.project_dir%'
             $validImageExtensions: '%contao.image.valid_extensions%'
+
+    Tastaturberuf\ContaoImageCopyrightBundle\EventListener\ParseTemplateListener:
+        arguments:
+            - '@contao.routing.scope_matcher'
+            - '@request_stack'
+        tags:
+            - { name: contao.hook, hook: parseTemplate, method: onParseTemplate, priority: 0 }